*Notional-weighted price return on lawmakers' disclosed buys of MRK, marked to the latest close — per-share (share counts aren't disclosed).
| Date | Member | Type | Amount | Est. price | Latest close | Return |
|---|---|---|---|---|---|---|
| 2020-02-20 | Hon. Lois Frankel | BUY | $1K–$15K | $78.71 | $128.66 2026-06-26 | +63.5% |
| 2020-02-19 | Hon. Lois Frankel | BUY | $1K–$15K | $78.24 | $128.66 2026-06-26 | +64.4% |
| 2020-02-06 | Hon. Mikie Sherrill | SELL | $770.32–$770.32 | $81.76 | $128.66 2026-06-26 | -57.4% exit |
| 2020-02-05 | Kelly Loeffler | SELL | $1K–$15K | $81.90 | $128.66 2026-06-26 | -57.1% exit |
| 2020-02-05 | Kelly Loeffler | SELL | $1K–$15K | $81.90 | $128.66 2026-06-26 | -57.1% exit |
| 2019-07-22 | Hon. Bryan George Steil | SELL | $1K–$15K | $77.49 | $128.66 2026-06-26 | -66.0% exit |
| 2019-07-12 | Hon. Bryan George Steil | SELL | $1K–$15K | $76.08 | $128.66 2026-06-26 | -69.1% exit |
| 2019-06-24 | Hon. David P. Roe | BUY | $1K–$15K | $81.59 | $128.66 2026-06-26 | +57.7% |
| 2019-04-18 | Hon. Mikie Sherrill | SELL | $1K–$15K | $69.84 | $128.66 2026-06-26 | -84.2% exit |
| 2019-04-10 | David A Perdue , Jr | SELL | $15K–$50K | $77.12 | $128.66 2026-06-26 | +23.5% rt |
| 2019-02-19 | David A Perdue , Jr | SELL | $15K–$50K | $75.61 | $128.66 2026-06-26 | +21.7% rt |
| 2019-01-11 | James M Inhofe | SELL | $100K–$250K | $71.47 | $128.66 2026-06-26 | +30.5% rt |
| 2018-10-29 | David A Perdue , Jr | SELL | $1K–$15K | $68.18 | $128.66 2026-06-26 | +9.7% rt |
| 2018-10-03 | David A Perdue , Jr | SELL | $15K–$50K | $68.10 | $128.66 2026-06-26 | +11.1% rt |
| 2018-06-04 | Susan M Collins | BUY | $1K–$15K | $59.18 | $128.66 2026-06-26 | +117.4% |
| 2018-04-24 | David A Perdue , Jr | BUY | $1K–$15K | $57.34 | $128.66 2026-06-26 | +124.4% |
| 2018-01-16 | David A Perdue , Jr | BUY | $100K–$250K | $59.23 | $128.66 2026-06-26 | +117.2% |
| 2018-01-08 | Hon. Alan S. Lowenthal | SELL | $567.58–$567.58 | $54.06 | $128.66 2026-06-26 | +11.3% rt |
| 2018-01-04 | Shelley M Capito | SELL | $1K–$15K | $54.44 | $128.66 2026-06-26 | -136.3% exit |
| 2018-01-04 | Shelley M Capito | SELL | $1K–$15K | $54.44 | $128.66 2026-06-26 | -136.3% exit |
| 2018-01-04 | Shelley M Capito | SELL | $1K–$15K | $54.44 | $128.66 2026-06-26 | -136.3% exit |
| 2017-12-13 | David A Perdue , Jr | SELL | $100K–$250K | $54.30 | $128.66 2026-06-26 | -11.4% rt |
| 2017-11-27 | Sheldon Whitehouse | SELL | $15K–$50K | $52.05 | $128.66 2026-06-26 | -8.3% rt |
| 2017-11-21 | Hon. Virginia Foxx | SELL | $15K–$50K | $51.78 | $128.66 2026-06-26 | -15.1% rt |
| 2017-11-09 | Hon. John A. Yarmuth | BUY | $1K–$15K | $53.64 | $128.66 2026-06-26 | +139.9% |
| 2017-11-08 | Hon. Alan S. Lowenthal | SELL | $15K–$50K | $53.99 | $128.66 2026-06-26 | +11.1% rt |
| 2017-10-30 | David A Perdue , Jr | BUY | $1K–$15K | $52.20 | $128.66 2026-06-26 | +146.5% |
| 2017-10-27 | David A Perdue , Jr | BUY | $15K–$50K | $55.57 | $128.66 2026-06-26 | +131.5% |
| 2017-10-26 | Shelley M Capito | SELL | $1K–$15K | $59.15 | $128.66 2026-06-26 | -2.6% rt |
| 2017-10-18 | David A Perdue , Jr | BUY | $1K–$15K | $60.60 | $128.66 2026-06-26 | +112.3% |
| 2017-10-11 | Hon. Virginia Foxx | BUY | $1K–$15K | $60.86 | $128.66 2026-06-26 | +111.4% |
| 2017-10-05 | David A Perdue , Jr | BUY | $1K–$15K | $61.64 | $128.66 2026-06-26 | +108.7% |
| 2017-09-29 | David A Perdue , Jr | BUY | $1K–$15K | $61.10 | $128.66 2026-06-26 | +110.6% |
| 2017-09-29 | David A Perdue , Jr | BUY | $1K–$15K | $61.10 | $128.66 2026-06-26 | +110.6% |
| 2017-09-27 | David A Perdue , Jr | BUY | $1K–$15K | $61.61 | $128.66 2026-06-26 | +108.8% |
| 2017-09-27 | David A Perdue , Jr | BUY | $1K–$15K | $61.61 | $128.66 2026-06-26 | +108.8% |
| 2017-09-26 | David A Perdue , Jr | BUY | $1K–$15K | $61.79 | $128.66 2026-06-26 | +108.2% |
| 2017-09-26 | David A Perdue , Jr | BUY | $1K–$15K | $61.79 | $128.66 2026-06-26 | +108.2% |
| 2017-09-22 | David A Perdue , Jr | BUY | $15K–$50K | $62.15 | $128.66 2026-06-26 | +107.0% |
| 2017-09-22 | David A Perdue , Jr | BUY | $15K–$50K | $62.15 | $128.66 2026-06-26 | +107.0% |
| 2017-09-21 | David A Perdue , Jr | BUY | $1K–$15K | $62.60 | $128.66 2026-06-26 | +105.5% |
| 2017-09-21 | David A Perdue , Jr | BUY | $1K–$15K | $62.60 | $128.66 2026-06-26 | +105.5% |
| 2017-09-12 | David A Perdue , Jr | BUY | $1K–$15K | $62.46 | $128.66 2026-06-26 | +106.0% |
| 2017-09-12 | David A Perdue , Jr | BUY | $1K–$15K | $62.46 | $128.66 2026-06-26 | +106.0% |
| 2017-09-11 | David A Perdue , Jr | BUY | $1K–$15K | $62.15 | $128.66 2026-06-26 | +107.0% |
| 2017-09-11 | David A Perdue , Jr | BUY | $1K–$15K | $62.15 | $128.66 2026-06-26 | +107.0% |
| 2017-09-08 | David A Perdue , Jr | BUY | $15K–$50K | $61.33 | $128.66 2026-06-26 | +109.8% |
| 2017-09-08 | David A Perdue , Jr | BUY | $15K–$50K | $61.33 | $128.66 2026-06-26 | +109.8% |
| 2017-09-06 | Hon. James B. Renacci | BUY | $1K–$15K | $61.07 | $128.66 2026-06-26 | +110.7% |
| 2017-09-05 | Shelley M Capito | BUY | $1K–$15K | $60.71 | $128.66 2026-06-26 | +111.9% |
Return: buys marked to the latest close (open); sells tagged rt are realized round-trips vs a prior disclosed buy; exit = timing (stock move after the sale, seller's perspective).